I would link to others, but most of the ones that I've found include clear views of users' faces, sometimes clothed and sometimes shirtless. In some cases it looks like the photos were taken in their homes. It's ironic that in exposing Grindr's mishandling of users' personal data, this party appears to have mishandled personal data themselves.
[1]: https://github.com/SINTEF-9012/grindr-privacy-leaks/blob/mas...
[2]: https://github.com/SINTEF-9012/grindr-privacy-leaks/blob/mas...